The lingerie trade old hat expanded in the 21st span with designs that double as outerwear. The French refer to this as 'dessous-dessus' which basically means innerwear as outerwear. The galleria Faire Frou Frou, which is an antiquated Sexy Lingerie phrase meaning "show it off", heralds this philosophy by categorizing lingerie as an accessory with details such as straps and lace trim that should be layered and shown as atom of one's outerwear.

Lingerie is a appellation for women's fashion undergarments. It derives from the French tete-a-tete 'lin' for linen. While the term in the French language applies to all undergarments for either sex, in English it is applied only to those women's undergarments thought-out to be visually appealing or erotic, altogether incorporating materials such as Lycra, nylon (nylon tricot), polyester, satin, lace and/or silk and not applied to human factors cotton undergarments.